Transient ischemic attacks (TIAs) occur when blood flow to reach part of the brain it stops for a short time. Unlike a stroke (cerebrovascular accident), an AIT lasts a few hours and does not cause the death of brain tissue. Loss of blood flow to part of the brain can be caused by a blood clot in a brain artery, a blood vessel lesion or stenosis. Hypertension is the main risk for TIAs and stroke, although there are also other important: cardiac arrhythmia, heart disease, high cholesterol, diabetes etc. Clinically, a TIA is manifested by the sudden onset of certain symptoms, which can last from a few minutes to a few hours, and that would be the same as those of a stroke: a sense of instability, changes in sensation, difficulty reading or talk, inability to recognize objects or people ... The treatment is based on control, prevent and deal with the aftermath of the AIT.